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tnt
相关语句
  三硝基甲苯
    Effects of TNT on Ca2+ ATPase and protein-thiol of rat hepatocyte plasma membrane
    三硝基甲苯对大鼠肝细胞质膜Ca(2+)-ATP酶和蛋白质巯基含量的影响
短句来源
    Protein adducts of trinitrotoluene (TNT) and its structural identification
    三硝基甲苯蛋白加合物及其结构鉴定
短句来源
    EXPERIMENTAL STUDY ON CHANGES OF LENS IN PRIMATES BY CHRONIC EXPOSURE TO TNT
    三硝基甲苯(TNT)慢性染毒致灵长类动物晶体改变的实验研究
短句来源
    TNT RELATIONSHIP BETWEEN HEMOGLOBIN ADDUCT LEVELS AND TNT-CATARACT
    三硝基甲苯血红蛋白加合物与白内障的关系
短句来源
    The effects of trinitrotoluene(TNT) on Ca2+-ATPase and protein-thiol of rat hepatocyte plasma membrane were studied in two experimental models.
    用两种实验模型观察三硝基甲苯(TNT)对大鼠肝细胞质膜Ca~(2+)-ATP酶和蛋白巯基含量的影响。
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  “tnt”译为未确定词的双语例句
    THE IMPACT OF OCCUPATIONAL TNT EXPOSURE ON VISION AND VISUAL REACTION TIME IN OFFSPRING
    职业暴露TNT对子代视力及视反应时的影响
短句来源
    Changes of superoxide dismutase activity in serum of TNTexposed workers and HBsAg positive workers
    TNT作业工人和HBsAg阳性者血清SOD活性的变化
短句来源
    Study on the Relationship between TNT Induced Cataract and Lipid Peroxidation
    TNT接触和TNT白内障与脂质过氧化相关性研究
短句来源
    Addition of TNT into the 45Ca preloading mitochondria resulted in the increased 45Ca release from them,suggesting the disrupted Ca2+ compartment function of mitochondria.
    当560μmol/L TNT加入到~(45)Ca预负荷的线粒体中,线粒体中的~(45)Ca释放明显增加,提示线粒体对Ca~(2+)的隔离功能受损。
短句来源
    Anaerobic incubation of 560μmol/L trinitrotoluene(TNT),an explosive applied widely in the munitions and mining industries,with 1 mmol/L NADPH and 2 mg rat liver mitochondria protein/ml produced an electron spin resonance(ESR)spectrum of nitro anion free radical. The radical formation depended on all three components in the incubation system.
    在无氧条件下,以560μmol/L TNT与1mmol/L NADPH和大鼠肝线粒体(2 mg蛋白/ml)在室温下温育,用ESR波谱直接观察到TNT还原活化后形成的硝基阴离子自由基信号,信号的出现取决于温育体系中的所有三种成分。
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  tnt
Using Bacillus subtilis SK1 as an example, it was demonstrated for the first time that 2,4,6-trinitrotoluene (TNT) transformation pathways change with TNT concentration.
      
subtilis SK1, delayed at 20 mg/l TNT (minimum toxic concentration), was resumed following TNT transformation.
      
Aromatic amines were predominant metabolites detected in the culture medium at early stages of TNT transformation.
      
The culture growth was completely inhibited by 200 mg/l TNT.
      
The sensitivity of Escherichia coli strains K-12 and 055 to 2,4,6-trinitrotoluene (TNT) was found to correlate with the structural and functional properties of the outer lipoprotein membrane.
      
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This article deals with the contamination and control observation of Trinitrotoluene(TNT) in ocular conjunctivat sac of 20 rabbits in groups. After taking sample, we know throngh analysis the existence and inexistence of TN'product in anterior aqueous humour and urina of rabbits, and determine the conditions of absorbing TNT powder in the ocular tissue. And the result is: TNT powder in the eye in the contamination group coulp be dissipated in 24 hours. Through sampling analysis, the anterior...

This article deals with the contamination and control observation of Trinitrotoluene(TNT) in ocular conjunctivat sac of 20 rabbits in groups. After taking sample, we know throngh analysis the existence and inexistence of TN'product in anterior aqueous humour and urina of rabbits, and determine the conditions of absorbing TNT powder in the ocular tissue. And the result is: TNT powder in the eye in the contamination group coulp be dissipated in 24 hours. Through sampling analysis, the anterior aqueous humour in contamination group shows positive reaction, while the anterior aqueous bumour in control group shows negative change. It is shown that the tissue in conjunctive of the ocular part is one of the major mithods of invading TNT organism.

水文对20只实验家兔分组进行眼结膜囊内三硝基甲苯(TNT)染毒和对照观察。通过采样后点滴分析,了解家兔前房水和尿液中TNT产物的存无,以此判定眼组织对TNT粉的吸收情况。其结果:染毒组的结膜囊内TNT粉,均能在24小时内消散,经采样分析,染毒组前房水均获得阳性反应,对照组全为阴性改变,表明眼局部结膜是TNT侵入机体的重要途径之一。通过尿液分析,发现染毒组有5只出现阳性改变,2只为阴性,而对照组8只家兔,均系阴性结果。说明TNT粉不仅由眼组织直接吸收,还可参与机体代谢,经肾脏排出。

Anaerobic incubation of 560μmol/L trinitrotoluene(TNT),an explosive applied widely in the munitions and mining industries,with 1 mmol/L NADPH and 2 mg rat liver mitochondria protein/ml produced an electron spin resonance(ESR)spectrum of nitro anion free radical.The radical formation depended on all three components in the incubation system.In the presence of oxygen,the similar incubation manifested no observable ESR signal.Aerobically,TNT-stimulated oxygen consumption,superoxide(O2-)formation,NADPH...

Anaerobic incubation of 560μmol/L trinitrotoluene(TNT),an explosive applied widely in the munitions and mining industries,with 1 mmol/L NADPH and 2 mg rat liver mitochondria protein/ml produced an electron spin resonance(ESR)spectrum of nitro anion free radical.The radical formation depended on all three components in the incubation system.In the presence of oxygen,the similar incubation manifested no observable ESR signal.Aerobically,TNT-stimulated oxygen consumption,superoxide(O2-)formation,NADPH oxidation and inhibited45Ca uptake by mitochondria were shown in dose-dependent manner.Addition of TNT into the 45Ca preloading mitochondria resulted in the increased 45Ca release from them,suggesting the disrupted Ca2+ compartment function of mitochondria.It was also shown that SOD and/or CAT reduced TNT-stimulated oxygen consumption and NADPH oxidation by mitochondria.

在无氧条件下,以560μmol/L TNT与1mmol/L NADPH和大鼠肝线粒体(2 mg蛋白/ml)在室温下温育,用ESR波谱直接观察到TNT还原活化后形成的硝基阴离子自由基信号,信号的出现取决于温育体系中的所有三种成分。若温育体系中通入氧气,则信号消失。在有氧条件下,不同浓度TNT(35~560μmol/L)与NADPH及鼠肝线粒体在37℃温育,可致线粒体氧耗明显增加,伴有超氧阴离子自由基的形成和NADPH的氧化,线粒体对~(45)Ca的摄取能力也有明显的下降,这些改变均呈明显的浓度效应关系。当560μmol/L TNT加入到~(45)Ca预负荷的线粒体中,线粒体中的~(45)Ca释放明显增加,提示线粒体对Ca~(2+)的隔离功能受损。研究中还发现,在温育体系中加入超氧化物歧化酶和/或过氧化氢酶,可减少TNT引起的线粒体氧耗增加及NADPH氧化。

The effects of trinitrotoluene(TNT) on Ca2+-ATPase and protein-thiol of rat hepatocyte plasma membrane were studied in two experimental models. When TNT was directly incubated with the plasma membrane isolated by Percoll density centrifugation in the presence of NADPH at 37℃ for 30 or 60 min, no obvious changes of Ca2+-ATPase and protein-thiol were shown. In the dose- and time-dependent manners, however, the marked reduces of Ca2+-ATPase and protein-thiol in the plasma mem-brane isolated from Affi-Gel...

The effects of trinitrotoluene(TNT) on Ca2+-ATPase and protein-thiol of rat hepatocyte plasma membrane were studied in two experimental models. When TNT was directly incubated with the plasma membrane isolated by Percoll density centrifugation in the presence of NADPH at 37℃ for 30 or 60 min, no obvious changes of Ca2+-ATPase and protein-thiol were shown. In the dose- and time-dependent manners, however, the marked reduces of Ca2+-ATPase and protein-thiol in the plasma mem-brane isolated from Affi-Gel 731 polycation -coated bead after preincubation of TNT with intact hepatocyte in same conditions were observed, with significant relationship (r =0.905, p<0.01) between two indices. An addition of dithiothreit in the incubation system protected the plasma membrane against TNT-induced Ca2+-ATPase inhibition.

用两种实验模型观察三硝基甲苯(TNT)对大鼠肝细胞质膜Ca~(2+)-ATP酶和蛋白巯基含量的影响。结果表明:当TNT直接与Percoll密度梯度离心分离的质膜及NADPH在37℃温育30或60min后,上述两项指标均未见明显改变;但若将TNT与胶原灌注分离的肝细胞在37℃温育同样的时间,然后用Affi-Gel 731聚阳离子凝胶颗粒吸附法分离质膜,则质膜Ca~(2+)-ATP酶活性和蛋白巯基含量均见明显下降,且呈剂量时间效应关系,两项观察指标之间密切相关。若在肝细胞的温育介质中加入二硫苏糖醇或GSH,则前者对Ca~(2+)-ATP酶活性具有明显的保护作用,而GSH作用不明显。

 
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